Fire fighting apparatus



' May. 13, 1941.

o. B. HISAW FIRE FIGHTING APPARATUS 2 Sheets-Sheet 1 Filed Jan. .13,1939 Inventor A fl BGJsaw By 2mm 6 WJQ u/ a m a Ff u w m j a h/ v, w u aw, a 9 flfl l f a w F 9 n 4 6 4 6 w I and A ttorneys May 13, 1941- o. B.HISAW FIRE FIGHTING APPARATUS Filed Jan. 13, 1939 2 Sheets-Sheet 2lnventbr A iiorneys Patented May 13, T941 FIRE FIGHTING APPARATUS OttoB. Hisaw, Susanville, Calif. Application January :13, 1939, Serial No.250,823

1 Claim.

My invention relates generally to firefighting apparatus for operationwithout a pressure water supply, and particularly to ambulatoryapparatus of this character which will take water from any availablewater supply into a reservoir tank included therein, and discharge thewater with sufiicient force forfire extinguishing purposes, and animportant object of my invention is to provide a simple, eificient, andrelatively inexpensive fire fighting apparatusof the character indicatedwhich is especially adapted for use and operation in extinguishinggrass, brush, and forest fires and fires occurring in communitieslacking pressure water supply.

Other important objects and advantages of my invention will be apparentfrom a reading of the following description taken in connection with thedrawings, wherein for purposes of illustration I have set forth apreferred embodimentv of my invention.

In the drawings- Figure 1 is a general side elevational view of theembodiment. v

Figure 2 is a top plan view of Figure 1. Figure 3 is a rear endelevational view thereof. Figure 4 is a fragmentary and enlarged topplan View of the vehicle transmission power takeoff partly in section.

Figure 5 is a fragmentary isometric schematic view showing thecomponents of the embodiment in operative relation.

Referring in detail to the drawings, the numeral 5 generally designatesthe fire fighting apparatus of the present invention as a whole and thisis made up of a suitable automobile truck involving a platform 6 mountedon the Wheeled chassis I to the rear of the cab 8, on which platform ismounted an elongated water tank 9 which is provided at longitudinalintervals with interior baifles I preventing surging of the water whilethe truck is in motion. The truck has a conventional transmission buthaving mounted on one side the power takeofi I2, as shown in Figure 4which involves a gear box I3 having a gear I4 adapted to be moved by thecontrol lever I4 into mesh with one of the gears of the transmission,the last-mentioned gear not being shown. The gear I4 is mounted on ajack shaft which includes the belt pulley I over which the belt I6 istrained. This belt I6 is also trained over the pulley H on a rotaryforce pump IB which is mounted on the forward end of the platform 6 atone side of the tank 9.

To the intake side of the force pump I8 is connected a pipe I9 to whichis connected a flex- II conventionally located,

ible hose 2!] which is adapted to be placed in a suitable water supplysuch as a stream, lake, water barrel or the like source of water whichmay be available. shut-off valve 2| and between the valve 2| and thepump is the branch 22 which is equipped with a shut-off valve 23,the.pipe 22 being in communication with the lower part of one side ofthe tank 9.

The discharge side of the force pump I8 has connected thereto a pipe 24which has on its upper end an L-shaped swivel joint 25 to Which isconnected the flexible fire-fighting hose 26 which includes the streamcontrolling nozzle '21. The joint 25 has the shut-off valve 25. A branchpipe 28 is connected to the pipe 24 between the discharge side of thepump and the swivel 25, and this pipe 28 leads into the top of the tank9,

the pipe 28 having a shut-off valve 29 located between the pipe 24 andthe tank 9.-

By reason of the arrangements described the tank 9 may be filled withwater coming through the flexible pipe 20 by opening the valve 2 I,shutting the valve 23 and opening the valve 29 with the force pump I8operating, whereby the water drawn through the flexible pipe 20 willpass I through the pipe I9 up through the pipe 24, over through the pipe28 and into the top of the tank 9. If desired the valves 23 and 29 maybe closed, with the valve 2| open, and with the pump I8 operating, thewater drawn into the flexible pipe 20 may be 'forced directly throughthe fire-fighting hose 26 for discharge upon the fire. In the event thatthe water in the tank 9 isthe sole 4 in the cab 8, and the rear end ofthis shaft 3| has thereon a beveled pinion 33 which is in mesh withanother beveled pinion 34 on a rotary valve operating shaft 35 whichoperates the shut-01f valve 36 in a pipe 31 leading out from the lowerpart of the back of the tank 9. The pipe 31 has a downward bend 38 whichterminates in communication with and in supporting relation to atransverse horizontalspray pipe 39 which is formed in its bottom withperforations to emit streams of water for the purpose of putting out Thepipe I9 has therein the.

grass fires and the like, the same being under constant control by theoperator of the truck by means of the handle 32.

Alongside of the pipe 35 and on the back of the platform 6 is a manualforce pump 40 which includes the operating lever 4|, and the dischargeside of this manual pump includes an intake pipe 4-2 which may beconnected with a flexible intake pipe such as the pipe 20 leading from asuitable supply of water. The discharge side 01' this pump includes agooseneck 43 which is adapted for connection to a suitable fire-fightinghose such.

as the hose 25. The manual pump is to be utilized in the event offailure of the force pump mechanism or in the case of an absence ofwater in the tank 9, and to prime the force pump when necessary.

Although I have shown and described herein a preferred embodiment of myinvention, it is to be understood that I do not limit the application ofmy invention thereto, and any change or changes may be made in thestructure arrangement of the parts within the spirit of :the inventionand the scope of the subjoined claim.

Having described the invention, what is claimed as new is:

Means for delivering liquid to or of a motor vehicle comprising a pumpdriven a vertically arranged pipe connected with the outlet of the pump,a second branch line connecting said vertical pipe adjacent its upperend to the top of the tank for leading water from the pump into thetank, a I valve in said second branch line, an L sha'pe'd pipe'swivelledto the upper end of the vertical pipe and adapted to have a hoseconnected therewith and a valve in the L-shaped pipe.

OTTO B. HISAW.

from a tank

